* Category cooldown is stored with the spell that started the cooldown (and only resetting cooldown on that spell will clear cooldowns on entire category - this fully mirrors client behavior)
* This significantly reduces the amount of data saved to database for cooldowns
* Spell casts from items that have a different category specified than on spell will now check for cooldown during the cast
(cherry picked from commit 1efb3f08e278530f59d681f676b031a7fc6db3ac)
Closes#15766Closes#15137Closes#14837
Shauren
7dcddd90be